#!/bin/csh
# Warning: As well as being a working Csh script
# THIS SCRIPT AUTO. INCLUDED IN TRANSFER MANUAL - SO TAKE CARE !

# Name :	~/bin/bak
# Type :	Cshell script
# Fuction:	Find trees of files & transfer them via serial line to msdos
#		for backup.
# Author:	Julian Stacey
# Syntax:	bak one_or_more_directory_or_file_names
# Bugs		- Addcr & stop_list not done for files in symbolically linked
#		  directories.
#		- If 2 processes are run on the same directory_or_file_names,
#		  addcr will get called twice, addcr doesnt have lock until read #		  complete facility, so .bat files may get corrupted.
#		  (A similar problem may occur with compressed .Z files).
# Copyright:	Julian Stacey 1989
# -	-	-	-	-	-	-	-	-	-

# Use temporary names typically of type /usr/tmp/bak.5381.stop.lst
set TMP=/usr/tmp/`basename $0`.$$

# Prevent anyone nosing at lists of your back up tree structure.
umask 077

# Turn echoes off, (otherwise if msdos pc ceases running kermit, starts running
# transfer whilst unix is running finds, before unix later gets round to running
# also running transfer, the pc sends R, unix echoes R, msdos pc concludes it
# has discovered a transfer program also in receive mode, and aborts.
stty -echo

# Ensuring msdos batch script lines terminate with CR LF."
find $* \( -type f -o -type l \) \( -name \*.bat \) -exec addcr -d {} \; \
	>& /dev/null

# Ensure we dont get a decompressed & compressed copy of same thing on Msdos,
# avoid sending compressed files, also my msdos doesnt have compress yet.
find $* \( -type f -o -type l \) \( -name \*.Z \) -exec uncompress {} \; \
	>& /dev/null

# Generating full list.
# The find below doesnt find files in symbolically linked directories, so
# is patched out until either I can figure out a change of find syntax to
# get it to do so, or until find binary is upgraded.
# find	$* \( -type f -o -type l \) -print | sort > $TMP.full.lst
/usr/bin/local/ls -RX $* | grep -v \.Z\$ | sort > $TMP.full.lst

# Avoid sending unwanted files. - Generate stop list.
find	$* \( -type f -o -type l \)					\
	\( -name \*.err -o -name \*.log -o -name \*.lnt 		\
	-o -name \*.lst -o -name a.out -o -name \*.o -o -name \*.a	\
	-o -name core -o -name t -o -name x -o -name z -o -name 1	\
	-o -name 2 -o -name 44 -o -name 49 -name t.c \) -print | sort	\
	> $TMP.stop.lst

# Subtracting stop list from full list.
comm	-23 $TMP.full.lst $TMP.stop.lst > $TMP.final.lst

# by now msdos should be running transfer -r -e (or similar).
cat	$TMP.final.lst | transfer -s -f-

stty echo
rm	$TMP.final.lst
rm	$TMP.full.lst $TMP.stop.lst >& /dev/null

#explanation of names removed from transferable list
# .lnt			lint output from my makefile
# .lst			nroff output from my makefiles; transfer lists
# .log			transfer log files
# .err			my name for msc compiler err log file
# a.out \*.o \*.a	unix compiler binaries of no interest to msdos archive
# .Z			compressed files
# core			unix core dumps of no interest to msdos archive
# t z 1 2		temporary human / vi / buffer names
# 44 49 		temporary lprset/vi names